Metal bearing-plate.



N0. 662,567. Patented Novf27, |900.

|. VON LIPOWSKA & G. VON GELDERN-EGMOND ZU ARQEN.

METAL summa PLATE;

(APPlicntion flled Apr. 25. 1900.) (N0 Modul.)

4 Sheets-Shaet 2.

I rweniorg N0. 662,567. Patented Nov. 27, 1900.

l. VON LIPOWSKA &. G. VI) GELDERN-EGMOND ZU ARQEN.

METAL BEABHIG PLATE.

(Application flled Apr. 25, 1900.)

4 Sheats-Sheet 3.

I (llo Modul.)

Fig. 13

N0. 662,567. 1 Patented Nov. 27, l900. l. VON LIPOWSKA &. G. VUN GELIIERN-EGMOND ZU ARQEN.

IETAL BEAHING PLATE.

(Appiicntion flled Apr. 25, 1900.)

UNITED Sns I FMCE1 ISABELLA VON LIPOVVSKA, OF KRKAU, AND GUSTAV VON GELDERN- EGMOND ZU ARQEN, OF VIENNA, AUSTRIA-HUNGARY.

METAL BEARlNG-PLATE.

SPEGIFIGATION forming paft of Letters Patent N0. 662,567, da.11ed November 27, 1900.

Application filenl April 25,1900.

T0 soll wh07n it may c0ncern:

Be 111 kmown 11ha11 we, ISABELLA VON LIPOW- SKA, (nee von GELDERN-EGMOND ZU ARQEN,) residing a11 Karmelitergasse 42, Krakau, and GUSTAV von GELDERN-EGMOND ZU ARQEN, residing a11 Hansensbrasse 3, Vienna I, Aus- 11ria-Hungar3 lmve inven1sed a oertain new and useful Improvement in 11he Manufaeture of Sheet-Metal Bearing-Plates, 0f whieh the followimg is a speeifica11ion.

The planes 11ha11 have hioherto beem gemerally nsecl es bearing-plates for building purposes are those of 11he oorruga11ed forrn, the ea-rrying power of Whi0h depends upon the depth anti oonfiguration of Ehe corrugations, whieh ran in one direction only of 11he plate. 111 may be stated gemerally as 10 11h0se 11ha11 t-he grea11er 11he dept-h 0f 1:he eorrugations and t-he narrower 11hese are the grea11er Will be 11he equally-distribuned load which 11l1ey can bear for one and 11he sarne span and unit of surfaoe. 111 is more than probable 11h2111 sheet metal 110 which sich a form1 is imparted 11h21t sec- 11ions haken in various direetions will show undulal1ing lines w0uld behave in an analogous manner 10 ordinary corrugated sheem metal if 11he ndulations had a1 relative sffening effect1that is 110 say, if ohe ridges and the valleys 11hereof were arramged symmetriea1ly relauively 10 a horizontal hasse and were securely uniued 110 the latter.

The presen11 invention relates 110 Ehe manufacture 0f bulged pla11es having the abovedescribed fea11ures, for whieh purpose fl2111 plaes hea11ed 110 redness are so molded uncler press-dies 01 betweem pressing-rollers that by pressing ei11her upward ancl down ward 0r only upward approximat-ely hernispherical eup-shaped bulges are formed which projeo'n upward amd downward and which oau be so arramged as 110 1ie in squares like a chessboamd o1 in rows.

In the aocom panying drawings, Figure 1 is a plan of a1 plate, showing 0110 forma in whioh 0u1 invention may be embodied. Fig. l is a sec11iom 0m oho line a b of Fig. l. Figs. 2 and 3 are plans showimg 0her fornms in whioh 0ur inven1.ion rnay be embodied. Figs. 2 and 3 are see11ions of Figs. 2 and 3 on 11he lines 0 d and e f, respeetively. Figs. 2" and 3 a1e secoions similar 110 Figs. 2 and 3, bu11 show- Seria.l N0. 14,344. (N0 mocleL) img bulges of a differem11 shape. Fig. 4 is an 1 emlarged detail of Fig. 1 Fig'. an enlarged detail of Fig. 2; Fig. 6, an enlargecl cletail of Fig. 2 Fig. 7 is aplan view showing still anooher forma in which our inventiom may be embodiecl. Fig. 7 is a seetion on the line 0 b of Fig. 7. Fig- 8 is a plan view showing a plate With all tl1e bulges projee11ing upwardly. Fig. 8 is a section on Ehe line 0 d of Fig. 8. Fig. 9 is a plan view showing a plate wi11h all Lhe bulges projecting downwardly amd 0f a, differen11 Form fromm mhosein Fig. 8. Fig. 9 is a SGC1'OD 011 the line efof Fig. 9. Figs. 10, 11, and 12 are respeetively emlarged details 0f Figs. 7, 8 and 9. Figs. 13, 14, and 15 are se0fional views of a diepress in differen1; posibions adapted 110 f01m1 bulges projeo1zing from eaeh side of the plante. Figs. 16, 17, and 18 are si1nilar views of 21 11wo-parn die-press 10 f0rm bulges projeotimg from both sides 0f the plame.

In 11he plane the upwardly-projeeing bulges are marked and 11he downwardly-projecting bulges are marked The shape 01: 11he bulges may vary, and in 11he exammples illustra11ed they are approximately hemispher- Mal-11112111 is, the rounded head is standing on a wund eonieal basis. The parts shaded vertieally in Figs. 2, 3, and 9 inclieate 11he par1ss 0f the plate in 1:he basis of symmetry whi0h suppor1: and inelose 11he bulges.

A fur11her modification oould be produoed if while mainainimg mhe ehess-board-llke a1- rangenment1 0f Fig. l 11he forma of Ehe eupshaped bulges11hemselves were altered. Thus if in plaoe of 11aking 21 0irole as 11110 basis of the bulges Ehe ciroummseribed square were tanken Ehe bnlges might assume the f0rzm of a Gothie o1 poim11ed vault. Wi1;h tl1is modifica11ionif oho original plaue were made eorrespondimgly 11hioker 11he bulges might be made 0f greater dep11h 11han wi'nh 11he hemispherioal f0rm.

In forming the cup-shaped bulges in 11he plate we do 11011 intend 110 decrease the leng11h 01 widnh 0f 11he fia11 pla11e, 101111 110 stre11ch 11he mebal to forma 11he bulges, amd im ordem 110 de mhis 111 is absolutely neeessary that oho plante be elamped 11igh11ly around i11s Gdges while 11he bulges are being formed. Obviously11he bulged portions will 100 thinner than the ad- IOO jacenE base portiohs oE' Ehe plaEe sun-ounding eaeh bulge, Whieh are noE sEretehed. In Figs. 13 to 18 we have illusEmted die-presses adapted Eo press ouE Ehe bulges in Ehe manner proposed.

The die in Figs. 13, 14, and 15 is oomposed of a lower pamt A A as a basis, Ehe midd1e parE B B, and Ehe upper parE O O, and Ehe clainping deviee f01 Ehe plate. The upper part and Ehe middle pm*E are only movable in vertieal direcEion along Eheir guiding-rods J J, Ehe upper ends of Ehe latEer being supporEed in Ehe frame D D, supporEed on Ehe posEs E E. The olamping device is so erranged EhaE onell four sides of Ehe upper parE C C of Ehe die-frame pieces G G, formed of sever'al pars 011 Ehe 1ong sides, having a wedge-shaped eross-section and siiding in,

guides, GEH] be .nioved upwardly and downwardly by means 0f screws F F.

atWe lobes is etiected. Eurned down forEhe final pressin-g. AfEer Ehe lit'ting up of Ehe upper pa1t Ehe middle parE should aseend automaEieally, a-r1d springs K K are used for Ehis purpose.

The construetion 0f a die formed 0f Ewo parEs only is shown in Figs. 16, 17, a-nd 18. The sheeE metal is firmly elamped in a doub1e franne of angle-iron x x. Ehen placed upon Ehe upper die, Ehe laEEer having been lifEed Eo Ehe posiEion shown in Fig. 16 and secured by means 013 Ehe wedges b b on Ehe holte B B, Ehus heing firmly united wiEh Ehe upper parE of Ehe die. The upper parE of Ehe die and Ehe clampingframe deseend EogeEher unEil Ehe frame seEEles upon shoulders c 011 Ehe lower die und Ehe metal plate assumes Ehe shape shown in cross-see- Eion in Fig. 17. The wedges b are Ehen removechand Ehe bending and pressing ean be continued by Ehe furEher downward movemenE of Ehe uppei* die, so EhaE finally Ehe meEal Eakes Ehe shape shown in Fig. 18.

A die operating es above described is simp1er and of more general use Ehen Ehe 0ne of Ehe firsE examp1e; buE sinoe m01te manual 1abor is neeessary Ehe pressing may require more Eime.

The manufacEure of Ehe seid bulged plates if carried on WiEhin simi1m limits Eo Ehose observed WiEh ordinary eorrugated plaEes would 'n0E presenE any diffieulties, and Ehe following eondiEions may be observed wiEh Ehe same:

FirsE. The lengEh of Ehe bulged plaEes oen be made equal Eo EhaE of ordinary oorrugated plaEes.

Seeond. The WidEh of Ehe plaEes ean, however, be greaEer Ehan ordinary corrugaEed plaEes.

T-hird. The Ehickness of Ehe p1aEes befor-e working should be mach greater Ehan thaE of ordinar) eorrugated plates, and iE should inovease in proporEion Eo Ehe increase in Ehe depEh of Ehe bulges.

FourEh. As only plates whose material is The hooks 1 I-I H are for Ehe purpose of firmly supporEing; Ehe middle part while Ehe pressing of Ehe neg- The hooks musE be The frame is of good qualiEy can 'undergo Ehe extensiori necessaryfor forming Ehebulges wiEhout Eearing and as Ehe sErain of such bulging will be Ehe more readily overeome Ehe greater Ehe base of Ehe bulge is, iE is advisable Eo make Ehe widthof Ehe bulges abouE double EhaE usually adopted Eor Ehe corrugaEion 0f ordinary corrug-aEed plates.

FifEh. The pressing of Ehe plaEes 02m either be efi'eeted so es Eo prod uee Ehe bulges simul- Eaneously on boEh sides 01 Ehe Ewo sides may be pressed separaEely, Ehe doivnward pressure being preferably effecEed firsE. In pressing iE is advisable Eo fix Ehe plaEe firmly in posi- Eion aE Ehe edges. AfEer pressing Ehe plaEes should be. E1immed.

SiXEh. An aeeuraEe caiou latii0n of=Ehe bearing powers of Ehe forms ot' Ehe bulged plaEes shown 011 Ehe drawings is noE poss'ible onaecounE o'fEhe greafu diversity of lines of stmin ooem-ing in Ehem, so EhaE any such caicula- Eions mnst be based on empirieal daEa derived from experimenEs-. 1Emay,however be sEaEed as Ehe resulE of experiments EhaE 011 comparing bulged plaEesof Ehe typesshown aE Figs. l, l, 7, and 7 of Ehe drawings With eorrugaied p'1aEes having Ehe samedepEhs of oorrugations a greaEe1. supporEi-ng powexis afforded by Ehe former Ehen by Ehe laEEer (Ehe surn of Ehe bearing-surfaoes being.abouE equa1 in boEh cases for Ehe sau e superfioiel area of plate, while Ehe Ehiekness of Ehe bulged plates is always greatev) and EhaE if 2E soft meEalbe exnployed Ehis will be improved by Ehe compression Eo which iE is subjeeEed in pressing ouE Ehe bu1ges.

The applioaEion of Ehe above-described bulged plaEes in 1ieu of eorrugaEed p1aEes willbe of advantege in various ways. Thus, forexample,ithas been proved: (a) Oh comparing Ehe Eypes of bulged plaEe shown 2EE Figs. l and 7, whieh were produeed fron1 -p1ates EhaE were originally six millimeEers Ehiek und weighed 46.8 kilos per square meEer, with a oorvesponding Eype of eorrugeEed plaEes of one hundred and EwenEy millimeEers heighE and WidEh 0f eorrugaEion and Ehree millimeters Ehiekness and weighing IOO IIO

without laps 61.9 ki-los per square meEer a saving of weight 0f 24.2 per oenE. in favorof Ehe bulged plates was shown, amounEing Eo abouE Ehe same pereenEage of saving in eosE. (b) When nsing such bulged plaEes for Ehe eeilings of buildings, Ehere was shown, firsE, a saving in Ehe height of sEruoEure in eomparison WiEh 0Ehex eonstructions of eeilings, and consequenfly a reduction in heighE of Ehe severa1 sEories seeond, a eonsiderable redueion in Ehe weight of Ehe strueEure; .Ehird, compleEe seouriEyagainst burglarious enEry; fourEh, Ehe bulged plaEes have an effeeEive supporEingsu rfaee, allow of a strong connee- Eion of Ehe plaEes wiEh Ehe supporEing mein Walls, and in Ehe evenE of Eheir being builE in during Ehe ereetion Ehe sEaging wiEhin Ehe building is simplified; fifEh, from whaE has been seid under one Eo four :iE follows EhaE in predetermined points, the meta1 forming the bulges being thinner than the adjaeent m1- stretehed portions surrouuding each eupshaped bnlge,and the p1ate retaining iLs origimal dimensions afner the bulges are formed, snbstantially as described.

In tesnimony whereof we have signed our names 110 this specifieation in bhe presenee 0f tw0 subscribing witnesses.

ISABELLA VON LIPOWSKA. GUS'1AV VON GEhDERN-EGMOND ZU ARQEN.

\Vibnessesz O. B. HURST, ALVESTO S. HOGUE. 

